Six maintenance methods using automotive bearings

     Car bearing maintenance instructions summary: car bearing maintenance instructions vehicle rated load range work severe overload directly lead to bearing overload bearing early failure more serious cause of vehicle failure personal safety accidents prohibit bearing abnormal impact load periodic inspection bearing use state observe the bearing Whether the part is abnormal or not, the local temperature rises sharply. It is required to periodically quantify the hydrodynamic bearing.

     Maintenance methods for automotive bearings:

1. The vehicle should work within the rated load range. If the overload is severe, the bearing will be overloaded directly, which will cause early failure of the bearing. More serious will cause vehicle failure and personal safety accidents;

2. The bearing is prohibited from being subjected to abnormal impact loads;

3. Regularly check the use status of the bearing, pay attention to observe whether there is abnormal sound and partial sharp temperature rise in the bearing part;

4. Regularly or quantitatively add lubricating oil or grease as required;

5, according to the use of the vehicle, at least once every six months to completely replace the lubricant, and carefully check the bearing;

6. Inspection under bearing maintenance condition: Clean the bearing under detachment with kerosene or gasoline, carefully observe whether there is sliding or creeping phenomenon on the inner and outer cylindrical surfaces of the bearing, whether the inner and outer raceway surfaces of the bearing are peeling or pitting, and the rolling elements And whether the cage is worn or deformed, etc., according to the comprehensive condition of the bearing inspection, determine whether the bearing can continue to use
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Matching and pre-tightening of NSK imported bearings for household appliances

    Bearings have a certain speed limit, NSK bearings are no exception. When the bearing rotates, as the bearing rotates faster, the temperature rise caused by the friction inside the bearing increases. The rotational speed limit is a speed allowable value that can be experienced in sintering, overheating, and continuous operation. Therefore, the limit speed of various bearings varies depending on the bearing structure, size, cage structure, material, bearing load, lubrication method, and cooling conditions around the NSK bearing.
In the various bearing size tables, the limit speeds of grease lubrication and oil lubrication are listed for each bearing. This value is the number of rotations allowed for a standard designed bearing under normal load conditions, grease lubrication, and oil lubrication operation. The value of oil lubrication is based on oil bath lubrication.
Depending on the type of lubricant, the brand is different and has other properties that are not suitable for high speed rotation. Therefore, the bearing rotation speed exceeds 70% of the limit rotation speed described in the bearing size table, and it is necessary to select grease and lubricating oil with excellent high-speed performance.
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